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Philco "Circle 7" Wax Paper Capacitors
PeterN
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#1

03-24-2024, 06:44 PM
I have noticed that in several of my Philco radios, that some of the wax paper capacitors are marked with the number "7" inside a circle.

Not every paper cap in a radio is marked this way.

Any idea what this means?   I didn't see any mention to this in the service documents.
Regards,   PeterN

Philco 38-10F, 40-216RX
1924 Atwater Kent 20C
1926 Silvertone NeutroDyne XI
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1950's Battery Portables (Motorola, RCA, Zenith, GE, Philco)
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GarySP
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#2

03-25-2024, 10:38 AM
It might have been an internal tracking of some sort. Perhaps a bulk lot number. Take care and BE HEALTHY! Gary
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morzh
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#3

03-25-2024, 10:28 PM
A cap's a cap.

All are replaced by film caps of the appropriate Volts and Farads value.
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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration